David Fetter <david(at)fetter(dot)org> writes:
> My point in all this is that, "advanced" isn't frozen forever in time,
> and neither is, "basic."
No, but the "basic" chapter is trying to teach people what tables and
indexes are. I think it's reasonable to categorize FKs as a level
beyond that.
It would probably be fair to complain that window functions don't belong
in the same difficulty category as FKs. I stuck a chapter about them in
there because I didn't see any other good place for the material --- but
maybe we should consider breaking down the tutorial into
beginner/intermediate/"advanced" chapters?
regards, tom lane